If you want to link to auto parts Web site AutoZone.com, you have to download a four page legal agreement, fill it out, sign it, and fax it back to them. The link must be in the form of the official AutoZone.com logo, linking to any other page isn't allowed, and "may be used only on web [sic] pages that make accurate references to AutoZone.com..." Of course, none of this lawyer busy-work is legal.